Cooler



FIG. 1 is a perspective view of a cooler showing a new design.

FIG. 2 is a front elevation view thereof.

FIG. 3 is a back elevation view thereof.

FIG. 4 is a right side elevation view thereof, the left side being a mirror image thereof.

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines environmental showing is for illustrative purposes only and forms no part of the claimed design. The broken lines immediately adjacent to the shaded areas represent the bounds of the claimed design and form no part of the claim. 

The ornamental design for a cooler, as shown and described. 